Published January 1, 2010 | Version v1
Conference paper Open

Disturbance Observer Based Control of Three Phase UPS Inverter

  • 1. TUBITAK MRC Energy Inst, TR-41470 Gebze, Kocaeli, Turkey

Description

In this paper control of three phase UPS inverter with cascaded PI controller and load current estimation via disturbance observer are presented. Pure sinusoidal waveform with specified amplitude and frequency is required for UPS inverter under variety of loads. Load current acts as disturbance on the plant. To increase the disturbance rejection of the plant, the load current is adopted as feed forward loop to the voltage controller. Disturbance observer method is relatively simple method in comparison with Luenberger observer. The proposed algorithms are successfully presented with simulations and verified by experimentally.

Files

bib-f3f1d449-a745-4c89-9a1f-00a3e3723783.txt

Files (160 Bytes)

Name Size Download all
md5:67fed5514fe782b638542b5824195baa
160 Bytes Preview Download